PRICE £95.00


Buy Covid-19 Antibody Test - In Clinic by a Medical Professional

  • Carried Out by Medical Professionals
  • Results Within 24 hours
  • 99.8% Sensitivity, 99.8% Specificity

PRICE: £95

Covid-19 (Anti-SARS-CoV-2-S Spike) IgG/IgM Total Antibody Test

PLEASE NOTE: Our Canary Wharf Testing Location is Now Closed.

This is a test for the quantitative determination of antibodies against the SARS-CoV-2 in serum. The spike protein is the target of many Covid-19 vaccines in development. This blood test enables determination of both the presence and level of antibodies to the Covid spike protein. This test can signal whether a person has already been infected and has potentially started to develop a level of immunity to the virus. 

Antibody results in 6-24 hours from the laboratory receiving the sample.


Please note that for any of our Clinic or Home Test bookings, proof of identity is required prior to having your sample taken. This can be an ID Card, Passport, Drivers License or Residents Permit. If you are having a Fit to Fly test, please bring your passport. Unfortunately, we will not be able to assist you if you do not have any legal identification on you when coming for your appointment.

Antibody tests look for evidence of the immune response to covid-19. The aim to answer the question: have I been exposed to COVID-19 and produced an immune response? You can read in more detail about the types of test here. If you want to see if you are carrying Covid-19 now, you need to use an antigen test (PCR test)

We do not yet know if the antibodies are protective to make you immune and we do not yet know how long this immunity will last. 

Testing should be undertaken 14 days or more following exposure, onset of symptoms or post-vaccination. The incubation period of COVID-19 ranges from between 1 to 14 days, with the majority of cases manifesting with symptoms at 3–5 days.

If an individual has been infected with SARS-CoV-2, they may have detectable antibodies to both the nucleocapsid (N) and the spike protein receptor binding domain (RBD). Baseline antibody tests for both nucleocapsid and RBD antigens are therefore helpful to identify patients who have been previously infected with SARS-CoV-2. It is not yet known if an individual with a positive result showing presence of IgG levels following being infected with SARS-CoV-2 will be protected, either fully or partially from future infection, or for how long protective immunity may last.

If an individual has been vaccinated against SARS-CoV-2, with no history of natural infection, the antibodies they develop are to the spike protein receptor binding domain. Determining the levels of these antibodies could play a role in establishing vaccine efficacy and vaccine-induced immune response.

The laboratory we work with offers 4 assays for the detection of antibodies targeted against SARS-CoV-2. All the tests are CE marked and registered for use in the UK. The assay we select with the laboratory by default is the  Anti-SARS-CoV-2-S (Spike) IgG/IgM total antibody test. The other available assays are:

Anti-SARS-CoV-2 IgG/IgM total antibody test

This blood test enables the determination of the presence of IgG and IgM antibodies to the SARS-CoV-2 nucleocapsid protein.

SARS-CoV-2 IgG test

This blood test enables the determination of the presence of IgG antibodies to the SARS-CoV-2 nucleocapsid protein.

SARS-CoV-2 IgM test

This blood test enables the determination of the presence of IgM antibodies to the SARS-CoV-2 spike protein.

You can see a summary of the different assays below. 


Roche Elecsys
Anti-SARS-CoV-2 S
(Spike) Total antibody NEW

Roche Elecsys
Total Antibody

Architect SARS-CoV-2

Architect SARS-CoV-2


Roche e801

Roche e801

Abbott Architect

Abbott Architect

Assay type

Electrochemiluminescence immunoassay (ECLIA)

Electrochemiluminescence immunoassay (ECLIA)

Chemiluminescent Microparticle Immunoassay (CMIA)

Chemiluminescent Microparticle Immunoassay (CMIA)

Reporting format





Reporting ranges

Positive with value reported in U/ml / Negative

Positive / Negative

Positive / Negative


Antigen used

Spike protein receptor binding domain (RBD)



Spike protein

Analyte target

SARS-CoV-2 Antibodies (IgG/IgM) Total antibodies

SARS-CoV-2 Antibodies (IgG/IgM) Total antibodies

SARS-CoV-2 Antibodies (IgG)

SARS-CoV-2 Antibodies (IgM)

Sample type verified

Serum – venous or capillary self-collection

Serum – venous or capillary self-collection

Serum – venous

Serum – venous





96.67% in samples taken more than 14 days post symptoms onset


98.8% in samples taken 14 days or later after positive PCR




Seasonal Corona
Virus panel

24/24 Negative

26/26 Negative

26/26 Negative


Results should be used in conjunction with information available from  clinical evaluation and other diagnostic procedures. It has been recognised that there can be delayed responses in immunocompromised patients.


  • Home visit from clinic nurse: a clinical testing service from the safety of your own home (only available for patients living in central London) - please be available in the three-hour window you select below, the test itself should only take 30 minutes 
  • In-clinic testing service in in Central London or Canary Wharf.  If you require a same day appointment, you cannot book this online. Please call 020 3916 5990 and we will see if we can fit you in.

During the home visits all of our nurses:

  • Wear approved PPE
  • Use a sterile technique to take the blood sample while wearing gloves 
  • Dispose of all needles and other consumables themselves